Only a very faint image was produced from Plus-X in 500ml Cranberry Juice plus 5 teaspoons washing soda,pH about 11,semi-stand developed 45m 70F.
Cranberry juice I used contained 300mg/L vit C and 400mg/L proanthocyanidins.Neither of these is a good developer at the level found in the Cranberry juice.

I just tried Tri-X Mountain Dew for 45 min with 5 tbsp of sodium carbonate...didn't get an image

I tried something similar once, but I didn't bother to make precise measurements. It was diet Mountain Dew, sodium carbonate, and a film leader in a small container. As I recall, the combination ate away the emulsion, leaving me with clear film base. (I did this in normal room light and I didn't bother fixing it; it was just intended as an initial test, and given the results I didn't take it any further.)